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How to copy binary data from one stream to another?

Tags:

c++

stream

binary

Currently i have a program that loads binary data into a stringstream and then pases the data to a fstream like so:

stringstream ss(stringstream::binary | stringstream::in | stringstream::out);
ss.write(data, 512);  // Loads data into stream

// Uses a memory block to pass the data between the streams
char* memBlock = new char[512];
ss.read(memBlock, 512);

ofstream fout("someFile.bin", ios::binary);
fout.write(memBlock, 512);  // Writes the data to a file
fout.close();

delete[] memBlock;

My question is: is there a better way to pass the binary data between the streams?

like image 826
Fabi1816 Avatar asked Sep 17 '10 19:09

Fabi1816


1 Answers

Use the streambuf members, that's what they are for:

fout << ss.rdbuf();
like image 161
Alexandre C. Avatar answered Oct 06 '22 00:10

Alexandre C.